Mobile phone cover plate glass capable of meeting requirements of 5G communication and 3D compression molding and process method

A technology of molding and process method, which is applied in glass tempering, glass pressing, glass molding, etc., can solve the problems of high softening point temperature and dielectric constant, insufficient hot bending molding process, etc., and improve the surface quality of glass. , The effect of reducing the loss of 5G high-frequency transmission signal and prolonging the service life of the mold

Active Publication Date: 2019-04-16
XIANNING NANBO PHOTOELECTRIC GLASS CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0020] Aiming at the insufficient hot-bending forming process of 3D cover protection glass and the problems of high softening point temperature and high dielectric constant of existing high-strength aluminosilicate glass varieties, the present invention provides a high-transparency glass

Method used

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  • Mobile phone cover plate glass capable of meeting requirements of 5G communication and 3D compression molding and process method
  • Mobile phone cover plate glass capable of meeting requirements of 5G communication and 3D compression molding and process method
  • Mobile phone cover plate glass capable of meeting requirements of 5G communication and 3D compression molding and process method

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Experimental program
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Effect test

Embodiment

[0088] Physical and chemical process performance and chemical strength performance testing method and instrument of the present invention are as follows:

[0089]The elastic modulus is measured according to GB / T 7962.6-2010 "Test Methods for Colorless Optical Glass Part 6: Young's Modulus, Shear Modulus and Poisson's Ratio";

[0090] Density measurement adopts GB / T 7962.20-2010 "Test Methods for Colorless Optical Glass Part 20: Density";

[0091] The measurement of the average linear thermal expansion coefficient adopts GB_T 16920-2015 "Determination of the average linear thermal expansion coefficient of glass";

[0092] The surface tension measurement refers to the foreign language "Research on the Measurement Method of Surface Tension of Glass Melt under High Temperature Conditions" published by Tian Yingliang et al., Proceedings of China Society of Metrology and Testing, September 2013;

[0093] The measurement of dielectric constant adopts SJ / T 11043-1996 "Test method for...

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Abstract

The invention discloses mobile phone cover plate glass capable of meeting requirements of 5G communication and 3D compression molding and a process method. The mobile phone cover plate glass is alkali-aluminum silicate glass, and comprises SiO2, B2O3, Al2O3, an alkali metal oxide R2O, an alkaline earth and divalent metal oxide RO, a clarifying agent and a surfactant. The process method comprises the steps of matching material melting, primary compression molding, three-step method chemical strengthening treatment, and obtaining of the mobile phone cover plate glass. The dielectric constant ofthe mobile phone cover plate glass is only 6.35-6.43 and is reduced by 10-20% compared with that of existing mobile phone cover glass so that the loss of 5G high-frequency transmission signals can bewell reduced; the softening point temperature of the glass is lower than 709 DEG C and is reduced by 175 DEG C or above compared with that of the existing mobile phone cover plate glass; therefore, surface oxidation and losses, caused by primary compression molding of the cover plate protective glass, of the surface of a mold can be reduced, the service life of the mold is prolonged, and the surface quality of the glass is improved.

Description

technical field [0001] The invention belongs to the technical field of silicate glass, and relates to a mobile phone cover glass and a process method that meet 5G communication and 3D compression molding, and specifically relates to a glass material with high wave penetration and low dielectric loss that can meet the needs of 5G communication. The chemical composition of the mobile phone 3D cover glass can meet the low softening point and high strength of one-time 3D compression molding, and the glass of the present invention is suitable for chemical strengthening treatment. Background technique [0002] With the rapid development of communication technology, various advanced communication technologies continue to emerge, providing human beings with various forms of information to meet people's production and living needs. In 1837, Morse's telegraph communication experiment was successful. In 1876, Bell invented the telephone. Therefore, analog telephones have been used for ...

Claims

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Application Information

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IPC IPC(8): C03C3/093C03B11/00C03B27/012C03B27/03C03B27/04
CPCC03B11/00C03B27/012C03B27/03C03B27/04C03C3/093
Inventor 田英良
Owner XIANNING NANBO PHOTOELECTRIC GLASS CO LTD
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